Abstract
An interim analytic equation of state for Sulfurhexafluoride is given in the form of a reduced Helmholtz energy function. It represents the thermodynamic properties over the temperature range 222.38 to 525 K for pressures up to 55 MPa. The data selected for determining the linear coefficients of the equation are given, which includes some values predicted using the principle of corresponding states. The method used for the multiproperty fitting is given and, in particular, the functions used for fitting isobaric heat capacities as primary data. Comparisons with values predicted by the equation of state are given for saturation properties, second virial coefficients, densities, and isobaric and isochoric heat capacities. The accuracy of the representation of the equation of state is discussed and, also, the problems arising from inconsistencies between the different data sets. The interim status of this equation of state is due to these inconsistencies.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
W. A. Cole, Prediction and Representation of Thermodynamic Properties, Ph.D. thesis (University of London, London, 1987).
A. Oda, M. Uematsu, and K. Watanabe, Bull. JSME 26(219):1590 (1983).
K. M. de Reuck and B. Armstrong, Cryogenics 19: 505 (1979).
W. Wagner, Fortschr.-Ber. VDI-Z 3: No. 39 (1974).
L. A. Weber, J. Chem. Eng. Data 27: 203 (1982).
K. M. de Reuck, Int. J. Thermophys. 8: 375 (1987).
W. H. Mears, E. Rosenthal, and J. V. Sinka, J. Phys. Chem. 73(7):2254 (1969).
S. A. Ulybin and E. P. Zherdev, Dokl. Akad. Nauk 191(3):572 (1970).
S. A. Ulybin and E. P. Zherdev, Therm. Eng. 18(11):107 (1971).
K. Watanabe, H. Watanabe, and K. Oguchi, Proceedings, 7th Symposium on Thermophysical Properties (Am. Soc. Mech. Eng., New York, 1977), p. 47.
M. A. Likhatskii, V. V. Altunin, and N. Y. Filatov, Therm. Eng. 29(10):576 (1982).
S. N. Biswas, N. J. Trappeniers, and J. H. B. Hoogland, Physica 126A:384 (1984).
J. Mollerup, J. Chem. Eng. Data 30(1):21 (1985).
J. Bellm, W. Reineke, K. Schafer, and B. Schramm, Ber. Bunsenges. Phys. Chem. 78:282 (1974).
R. Hahn, K. Schafer, and B. Schramm, Ber. Bunsenges. Phys. Chem. 78:287 (1974).
A. Eucken and E. Schroder, Z. Phys. Chem. 41B: 307 (1938).
A. M. Sirota, Y. A. Khromykh, and I. I. Goldstein, Therm. Eng. 26(12):733 (1979).
K. Bier, G. Maurer, and H. Sand, Ber. Bunsenges. Phys. Chem. 84:430 (1980).
G. Saville and R. Szczepanski, Corresponding states prediction package (private communication).
G. Saville and R. Szczepanski, Chem. Eng. Sci. 37:719 (1982).
V. P. Glushko, L. V. Gurvich, G. A. Bergman, I. V. Veyts, V. A. Medvedev, G. A. Khachkurozov, and V. S. Youngman, Thermodynamic Properties of Individual Substances, 3rd ed. (Nauka, Moscow, 1978).
E. E. Totskii, Y. V. Karmyshin, and I. V. Talaev, High Temp. 22:693 (1984).
W. Blanke et al., Private communication.
R. Lange, Dissertation (Technische Universitat Munchen, Munchen, 1983).
J. V. Sengers et al., Private communication.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cole, W.A., de Reuck, K.M. An interim analytic equation of state for sulfurhexafluoride. Int J Thermophys 11, 189–199 (1990). https://doi.org/10.1007/BF00503870
Issue Date:
DOI: https://doi.org/10.1007/BF00503870